Eating More Legumes and Soy Cuts Hypertension Risk by 30%, Study Finds
A new meta-analysis has revealed strong links between legume and soy consumption and a lower risk of hypertension. The findings suggest that eating more of these foods could significantly improve heart health. Researchers now recommend prioritising them as key protein sources in dietary advice. The study examined data on legume and soy intake across different populations. It found that people eating the most legumes had a 16% lower risk of hypertension than those eating the least. A daily intake of up to 170 grams showed a near-linear reduction in risk, cutting it by around 30%.
Soy foods also demonstrated clear benefits. High consumption was tied to a 19% drop in hypertension risk. The greatest effect appeared between 60 and 80 grams per day, where risk fell by roughly 28-29%. Beyond this amount, the protective effect levelled off. Legumes and soy are rich in potassium, magnesium, fibre, and isoflavones—nutrients known to support blood vessel health. Despite these advantages, current intake in Western Europe and the UK remains low, averaging just 8-15 grams daily. This falls far short of the amounts linked to health benefits in the study.
The research highlights a simple dietary change with wide-reaching potential. Increasing legume and soy consumption could offer a practical way to reduce hypertension on a large scale. Public health guidelines may now consider emphasising these foods as affordable, accessible options for heart protection.
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